Watch-case pendant



(No Model.)

O. P. MORRILL. WATCH CASE PENDANT.

Patented Nov. 25, 1890.

7 INVEIN'TEIRI \A/ITNBEEEE:

UNITED STATES PATENT OFFICE.

CHARLES F. MORRILL, OF BOSTON, MASSACHUSETTS.

WATCH-CASE PEN DANST.

SPECIFICATION forming part of Letters Patent No. 441,435, dated November25, 1890.

Application filed May 19,1890. Serial No. 352,339. (No model.)

To all whom it may concern.-

Be it known that 1, CHARLES F. MORRILL, of Boston, in the county ofSuffolk and State of Massachusetts, have invented certain new and usefulImprovements in Watch-Cases, of which the following is a specification.

This invention relates to the cases of stemwinding and stem-settingwatches, in which the windin g bar or key in the pendant or stem of thewatch-case is moved in one direction to adapt it for winding and in theopposite direction to adapt it for setting the hands.

The object of the invention is to provide improved means forholding saidwindingbar or key in either of its positions; and to this end theinvention consists in the combination, with a pendant having suitablegrooves or shoulders on its external periphery, of a pendant-crownattached as usual to the winding-bar and provided with an elastic ring,which is sprung into a groove in the interior of the crown and isadapted to engage either of the grooves or shoulders in the pendant,said ring by its engagement with one groove or shoulder holding thewinding-bar in its winding position and when engaged with the othergroove or shoulder holding the windingbar in its hands-setting position,said bar being yieldingly held in each position, so that by theapplication of a suitable degree of force it may be moved from eitherposition to the other.

Of the accompanying drawings, forming a part of this specification,Figure 1 represents a sectional view of the crown detached from thependant. Fig. 2 represents a section on line 2 2 of Fig. 1. Fig. 3represents a side elevation of a pendant used with a crown con structedas shown in Figs. 1 and 2. Fig. at represents a sectional view of thecrown, showing another form of my improved ring-andgroove construction.Fig. 5 represents asectional view of the pendant and crown, showably thesides of grooves formed in said surface, as shown in Figs. 3 and 5.

0 represents the crown, having the groove j in its internal surface.

d represents an elastic metal ring divided or cut at i and sprungloosely into the groove j, formed in the inner surfaoeof the crown.

The ring d, when in its normal condition, is formed to engage either ofthe shoulders on the outer surface of the pendant, and thereby preventfree movement of the crown endwise of the pendant, the shoulder eresisting the inward movement and the shoulder e the outward movementvof said crown. Sufficient space is left around the ring in the groove jto permitthe ring to expand or spring outwardly when the crown is beingmoved from one position to the other. The shoulderse e on the pendantare in such position that when one of them is engaged with the ring dthe wind ing-bar will be in its hands-setting position, and when theother is engaged with the said ring the winding-bar will be in itswinding position.

When the crown is in the position in which it is held by the engagementof the ring d with the shoulder e on the pendant, it may be moved to theposition in which said ring (1 engages the shoulder e by applying inwardpressure upon the crown. To move the crown the reverse way it must bepulled outwardly.

In Figs. 1 and 5 I have shown the elastic ring triangular incross-section, and in Fig. 4. I have shown the ring made V -shaped incross-section, the groove j being in each case formed with angular sidesto receive the edges of the ring.

In Fig. 4 the groove 3' is made somewhat wider than the ring, so that asthe ring is expanded its edges can separate slightly from each other topermit the enlargement of the apex of the ring during the movement ofthe crown from one position to another.

It will be seen that in both the forms here shown the winding bar isheld in either of its two positions by the engagement of the crown withthe pendant, and that in each case said engagement is effected by meansof an elastic ring loosely sprung into a groove in the crown and in itsnormal condition projecting therefrom and engaging one of the grooves onthe pendant. The elasticity of the ring allows it to spring outwardlyand disengage itself from either shoulder on the pendant with which itmay be engaged when sufficient pressure is applied to the crown. Theyielding connection between the crown and pendant is such that the crownand winding-bar are held in either the hands-setting or winding positionwith sufficient firmness to prevent said crown from being moved from oneposition to the other by any small degree of force such as might heaccidentally applied, while at the same time the device allows the crownand bar to be moved from one position to the other by the application ofa moderate degree of force.

I11 Fig. 6 I show the shoulders e c as the sides of a projection on thependant.

In another application for Letters Patent filed by me June 16, 1890,Serial No. 355,565, I have claimed, broadly, the combination of apendant, a crown, one of said parts having a plurality of shoulders,which may be either on the inner surface of the crown or the outersurface of the pendant, and an elastic ring loosely inserted in a groovein the part that does not have the shoulders; but in this application Ilimit myself to a more specific construction, in which the ring iscontained in a groove in the inner surface of the crown and theshoulders are made on the surface of the pendant.

I claim-- A watch -case-pendant crown internally groovedandhavinganelastic ringlooselyiitted in said groove, combined with a pendantprovided with external shoulders, each formed to engage said ring,whereby the pendant and the winding-bar thereto attached may be held indilferent positions, as set forth.

In testimony whereof I have signed my name to this specification, in thepresence of two subscribing witnesses, this 7th day of May, A. D. 1890.

CHARLES I MORRILL.

Witnesses:

O. F. BRowN, A. D. HARRISON.

